Optical image capturing system

ABSTRACT

A five-piece optical lens for capturing image and a five-piece optical module for capturing image, along the optical axis in order from an object side to an image side, include a first lens with refractive power having a convex object-side surface; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power; and a fifth lens with negative refractive power; and at least one of the image-side surface and object-side surface of each of the five lens elements are aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates generally to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of ordinary photographingcamera is commonly selected from charge coupled device (CCD) orcomplementary metal-oxide semiconductor sensor (CMOS Sensor). Inaddition, as advanced semiconductor manufacturing technology enables theminimization of pixel size of the image sensing device, the developmentof the optical image capturing system towards the field of high pixels.Therefore, the requirement for high imaging quality is rapidly raised.

The conventional optical system of the portable electronic deviceusually has a three or four-piece lens. However, the optical system isasked to take pictures in a dark environment, in other words, theoptical system is asked to have a large aperture. An optical system withlarge aperture usually has several problems, such as large aberration,poor image quality at periphery of the image, and hard to manufacture.In addition, an optical system of wide-angle usually has largedistortion. Therefore, the conventional optical system provides highoptical performance as required.

It is an important issue to increase the quantity of light entering thelens and the angle of field of the lens. In addition, the modern lens isalso asked to have several characters, including high pixels, high imagequality, small in size, and high optical performance.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces offive-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The lens parameter related to a length or a height in the lens element:

A height for image formation of the optical image capturing system isdenoted by HOI. A height of the optical image capturing system isdenoted by HOS. A distance from the object-side surface of the firstlens element to the image-side surface of the fifth lens element isdenoted by InTL. A distance from the image-side surface of the fifthlens to the image plane is denoted by InB. InTL+InB=HOS. A distance fromthe first lens element to the second lens element is denoted by IN12(instance). A central thickness of the first lens element of the opticalimage capturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens element in the optical image capturingsystem is denoted by NA1 (instance). A refractive index of the firstlens element is denoted by Nd1 (instance).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens

An entrance pupil diameter of the optical image capturing system isdenoted by HEP.

The lens parameter related to a depth of the lens shape

A distance in parallel with an optical axis from a maximum effectivesemi diameter position to an axial point on the object-side surface ofthe fifth lens is denoted by InRS51 (instance). A distance in parallelwith an optical axis from a maximum effective semi diameter position toan axial point on the image-side surface of the fifth lens is denoted byInRS52 (instance).

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. To follow the past, a distance perpendicular to the optical axisbetween a critical point C41 on the object-side surface of the fourthlens and the optical axis is HVT41 (instance). A distance perpendicularto the optical axis between a critical point C51 on the object-sidesurface of the fifth lens and the optical axis is HVT51 (instance). Adistance perpendicular to the optical axis between a critical point C52on the image-side surface of the fifth lens and the optical axis isHVT52 (instance). The object-side surface of the fifth lens has oneinflection point IF511 which is nearest to the optical axis, and thesinkage value of the inflection point IF511 is denoted by SGI511. Adistance perpendicular to the optical axis between the inflection pointIF511 and the optical axis is HIF511 (instance). The image-side surfaceof the fifth lens has one inflection point IF521 which is nearest to theoptical axis, and the sinkage value of the inflection point IF521 isdenoted by SGI521 (instance). A distance perpendicular to the opticalaxis between the inflection point IF521 and the optical axis is HIF521(instance). The object-side surface of the fifth lens has one inflectionpoint IF512 which is the second nearest to the optical axis, and thesinkage value of the inflection point IF512 is denoted by SGI512(instance). A distance perpendicular to the optical axis between theinflection point IF512 and the optical axis is HIF512 (instance). Theimage-side surface of the fifth lens has one inflection point IF522which is the second nearest to the optical axis, and the sinkage valueof the inflection point IF522 is denoted by SGI522 (instance). Adistance perpendicular to the optical axis between the inflection pointIF522 and the optical axis is HIF522 (instance).

The lens element parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

The present invention provides an optical image capturing system, inwhich the fifth lens is provided with an inflection point at theobject-side surface or at the image-side surface to adjust the incidentangle of each view field and modify the ODT and the TDT. In addition,the surfaces of the fifth lens are capable of modifying the optical pathto improve the imagining quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, and a fifth lensin order along an optical axis from an object side to an image side. Thefirst lens has positive refractive power, and the fifth lens hasrefractive power. Both the object-side surface and the image-sidesurface of the fifth lens are aspheric surfaces. The optical imagecapturing system satisfies:1.2≦f/HEP≦2.8 and 0.5≦HOS/f≦2.5;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, and a fifth lens in order along an optical axis from an objectside to an image side. The first lens has positive refractive power, andboth the object-side surface and the image-side surface thereof areaspheric surfaces. The second lens has refractive power, and the thirdand the fourth lenses have refractive power. The fifth lens has negativerefractive power, and both an object-side surface and an image-sidesurface thereof are aspheric surfaces. The optical image capturingsystem satisfies:1.2≦f/HEP≦2.8;0.4≦|tan(HAF)|≦1.5;0.5≦HOS/f≦2.5;|TDT|<1.5%; and|ODT|≦2.5%;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; and ODT is an optical distortion.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, and a fifth lens in order along an optical axis from an objectside to an image side. At least two of these five lenses each has atleast an inflection point on a side thereof. The first lens has positiverefractive power, and both an object-side surface and an image-sidesurface thereof are aspheric surfaces. The second and the third lenshave refractive power, and the fourth lens has positive refractivepower. The fifth lens has negative refractive power, and an image-sidesurface has at least an inflection point, and both an object-sidesurface and the image-side surface of the fifth lens are asphericsurfaces. The optical image capturing system satisfies:1.2≦f/HEP≦2.8;0.4≦|tan(HAF)|≦1.5;0.5≦HOS/f≦2.5;|TDT|<1.5%; and|ODT|≦2.5%;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; and ODT is an optical distortion.

In an embodiment, the optical image capturing system further includes animage sensor with a size less than 1/1.2″ in diagonal, and the preferredsize is 1/2.3″, and a pixel less than 1.4 μm. A preferable pixel size ofthe image sensor is less than 1.2 μm, and more preferable pixel size isless than 0.9 μm. A 16:9 image sensor is available for the optical imagecapturing system of the present invention.

In an embodiment, the optical image capturing system of the presentinvention is available to high-quality (4K2K, so called UHD and QHD)recording, and provides high quality of image.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>f5.

In an embodiment, when the lenses satisfy |f2|−|f3|+|f4|>|f1|+|f5|, atleast one of the lenses from the second lens to the fourth lens couldhave weak positive refractive power or weak negative refractive power.The weak refractive power indicates that an absolute value of the focallength is greater than 10. When at least one of the lenses from thesecond lens to the fourth lens could have weak positive refractivepower, it may share the positive refractive power of the first lens, andon the contrary, when at least one of the lenses from the second lens tothe fourth lens could have weak negative refractive power, it may finelycorrect the aberration of the system.

In an embodiment, the fifth lens has negative refractive power, and animage-side surface thereof is concave, it may reduce back focal lengthand size. Besides, the fifth lens has at least an inflection point on atleast a surface thereof, which may reduce an incident angle of the lightof an off-axis field of view and correct the aberration of the off-axisfield of view. It is preferable that both surfaces of the fifth lenshave at least an inflection point on a surface thereof.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first preferred embodiment of thepresent invention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a curve diagram of TV distortion of the optical imagecapturing system of the first embodiment of the present application;

FIG. 2A is a schematic diagram of a second preferred embodiment of thepresent invention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a curve diagram of TV distortion of the optical imagecapturing system of the second embodiment of the present application;

FIG. 3A is a schematic diagram of a third preferred embodiment of thepresent invention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a curve diagram of TV distortion of the optical imagecapturing system of the third embodiment of the present application;

FIG. 4A is a schematic diagram of a fourth preferred embodiment of thepresent invention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a curve diagram of TV distortion of the optical imagecapturing system of the fourth embodiment of the present application;

FIG. 5A is a schematic diagram of a fifth preferred embodiment of thepresent invention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application; and

FIG. 5C shows a curve diagram of TV distortion of the optical imagecapturing system of the fifth embodiment of the present application.

FIG. 6A is a schematic diagram of a sixth preferred embodiment of thepresent invention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application; and

FIG. 6C shows a curve diagram of TV distortion of the optical imagecapturing system of the sixth embodiment of the present application.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a forth lens, and a fifth lensfrom an object side to an image side with refractive power. The opticalimage capturing system further is provided with an image sensor at animage plane.

The optical image capturing system works in three wavelengths, including486.1 nm, 510 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the mainreference wavelength, and 555 nm is the reference wavelength forobtaining the technical characters.

The optical image capturing system of the present invention satisfies0.5≦ΣPPR/|ΣNPR|≦2.5, and a preferable range is 1≦ΣPPR/|ΣNPR|≦2.0, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; and ΣNPR is a sum of the PNRs of each negative lens.It is helpful to control of an entire refractive power and an entirelength of the optical image capturing system.

HOS is a height of the optical image capturing system, and when theratio of HOS/f approaches to 1, it is helpful for decrease of size andincrease of imaging quality.

In an embodiment, the optical image capturing system of the presentinvention satisfies 0≦ΣPP≦200 and f1/ΣPP≦0.85, and a preferable range is0≦ΣPP≦150 and 0.01≦f1/ΣPP≦0.6, where ΣPP is a sum of a focal length fpof each lens with positive refractive power, and ΣNP is a sum of a focallength fn of each lens with negative refractive power. It is helpful tocontrol of focusing capacity of the system and redistribution of thepositive refractive powers of the system to avoid the significantaberration in early time. The optical image capturing system furthersatisfies ΣNP<−0.1 and f5/ΣNP≦0.85 and a preferable range is ΣNP<0 and0.01≦f5/ΣNP≦0.5, which is helpful to control of an entire refractivepower and an entire length of the optical image capturing system.

The first lens has positive refractive power, and an object-sidesurface, which faces the object side, thereof is convex. It may modifythe positive refractive power of the first lens as well as shorten theentire length of the system.

The second lens has negative refractive power, which may correct theaberration of the first lens.

The third lens has positive refractive power, which may share thepositive refractive power of the first lens.

The fourth lens has positive refractive power, and an image-side surfacethereof, which faces the image side, is concave. The fourth lens mayshare the positive refractive power of the first lens, and reduce anincrease of the aberration and reduce a sensitivity of the system.

The fifth lens has negative refractive power, and an image-side surfacethereof, which faces the image side, is concave. It may shorten a rearfocal length to reduce the size of the system. In addition, the fifthlens is provided with at least an inflection point on at least a surfaceto reduce an incident angle of the light of an off-axis field of viewand correct the aberration of the off-axis field of view. It ispreferable that each surface, the object-side surface and the image-sidesurface, of the fifth lens has at least an inflection point.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≦3 and0.5≦HOS/f≦2.5, and a preferable range is 1≦HOS/HOI≦2.5 and 1≦HOS/f≦2,where HOI is height for image formation of the optical image capturingsystem, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of size of the system for used in compactcameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.5≦InS/HOS≦1.1, and a preferable range is 0.8≦InS/HOS≦1,where InS is a distance between the aperture and the image plane. It ishelpful for size reduction and wide angle.

The optical image capturing system of the present invention satisfies0.45≦ΣTP/InTL≦0.95, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the fifth lens,and ΣTP is a sum of central thicknesses of the lenses on the opticalaxis. It is helpful for the contrast of image and yield rate ofmanufacture, and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.1≦R1/R2|≦0.5, and a preferable range is 0.1≦R1/R2|≦0.45, where R1 is aradius of curvature of the object-side surface of the first lens, and R2is a radius of curvature of the image-side surface of the first lens. Itprovides the first lens with a suitable refractive power to reduce theincrease rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−200<(R9−R10)/(R9+R10)<30, where R9 is a radius of curvature of theobject-side surface of the fifth lens, and R10 is a radius of curvatureof the image-side surface of the fifth lens. It may modify theastigmatic field curvature.

The optical image capturing system of the present invention satisfies0<IN12/f≦0.25, and a preferable range is 0.01≦IN12/f≦0.20, where IN12 isa distance on the optical axis between the first lens and the secondlens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies1≦(TP1+IN12)/TP2≦10, where TP1 is a central thickness of the first lenson the optical axis, and TP2 is a central thickness of the second lenson the optical axis. It may control the sensitivity of manufacture ofthe system and improve the performance.

The optical image capturing system of the present invention satisfies0.2≦(TP5+IN45)/TP4≦3, where TP4 is a central thickness of the fourthlens on the optical axis, TP5 is a central thickness of the fifth lenson the optical axis, and IN45 is a distance between the fourth lens andthe fifth lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≦(TP2+TP3+TP4)/ΣTP≦0.9, and a preferable range is0.4≦(TP2+TP3+TP4)/ΣTP≦0.8, where TP2 is a central thickness of thesecond lens on the optical axis, TP3 is a central thickness of the thirdlens on the optical axis, TP4 is a central thickness of the fourth lenson the optical axis, TP5 is a central thickness of the fifth lens on theoptical axis, and ΣTP is a sum of the central thicknesses of all thelenses on the optical axis. It may finely correct the aberration of theincident rays and reduce the height of the system.

The optical image capturing system of the present invention satisfies −1mm≦InRS51≦1 mm; −1 mm≦InRS52≦1 mm; 1 mm≦|InRS51|+|InRS52|≦2 mm;0.01≦|InRS51|/TP5≦10; and 0.01≦|InRS52|/TP5≦10, where InRS51 is adisplacement in parallel with the optical axis from a point on theobject-side surface of the fifth lens, through which the optical axispasses, to a point at the maximum effective semi diameter of theobject-side surface of the fifth lens, wherein InRS51 is positive whilethe displacement is toward the image side, and InRS51 is negative whilethe displacement is toward the object side; InRS52 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe fifth lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the fifthlens; and TP5 is a central thickness of the fifth lens on the opticalaxis. It may control the effective semi diameter of the fifth lensbetween the two surfaces to correct the aberration of the periphery viewfield and to keep the miniature size.

The optical image capturing system of the present invention satisfies0<SGI511/(SGI511+TP5)≦0.9 and 0≦SGI521/(SGI521+TP5)≦0.9, and a preferredrange is 0.01<SGI511/(SGI511+TP5)≦0.7 and 0.01≦SGI521/(SGI521+TP5)≦0.7,where SGI511 is a displacement in parallel with the optical axis, from apoint on the object-side surface of the fifth lens, through which theoptical axis passes, to the inflection point on the object-side surface,which is the closest to the optical axis, and SGI521 is a displacementin parallel with the optical axis, from a point on the image-sidesurface of the fifth lens, through which the optical axis passes, to theinflection point on the image-side surface, which is the closest to theoptical axis.

The optical image capturing system of the present invention satisfies0<SGI512/(SGI512+TP5)≦0.9; 0<SGI522/(SGI522+TP5)≦0.9, and a preferredrange is 0.1≦SGI512/(SGI512+TP5)≦0.8; 0.1≦SGI522/(SGI522+TP5)≦0.8, whereSGI512 is a displacement in parallel with the optical axis, from a pointon the object-side surface of the fifth lens, through which the opticalaxis passes, to the inflection point on the object-side surface, whichis the second closest to the optical axis, and SGI522 is a displacementin parallel with the optical axis, from a point on the image-sidesurface of the fifth lens, through which the optical axis passes, to theinflection point on the image-side surface, which is the second closestto the optical axis.

The optical image capturing system of the present invention satisfies0.01≦HIF511/HOI≦0.9 and 0.01≦HIF521/HOI≦0.9, and a preferred range is0.09≦HIF511/HOI≦0.5 and 0.09≦HIF521/HOI≦0.5, where HIF511 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis, and HIF521 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.01≦HIF512/HOI≦0.9 and 0.01≦HIF522/HOI≦0.9, and a preferred range is0.09≦HIF512/HOI≦0.8 and 0.09≦HIF522/HOI≦0.8, where HIF512 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the second closest tothe optical axis, and the optical axis, and HIF522 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the fifth lens, which is the second closest to theoptical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface isz=ch ²/[1+[1(k+1)c ² h ²]^(0.5) ]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰  (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of refractive power of the system.In addition, the opposite surfaces (object-side surface and image-sidesurface) of the first to the fifth lenses could be aspheric that canobtain more control parameters to reduce aberration. The number ofaspheric glass lenses could be less than the conventional sphericalglass lenses that is helpful for reduction of the height of the system.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention further isprovided with a diaphragm to increase image quality.

In the optical image capturing system, the diaphragm could be a frontdiaphragm or a middle diaphragm, wherein the front diaphragm is providedbetween the object and the first lens, and the middle is providedbetween the first lens and the image plane. The front diaphragm providesa long distance between an exit pupil of the system and the image plane,which allows more elements to be installed. The middle diaphragm couldenlarge a view angle of view of the system and increase the efficiencyof the image sensor. The middle diaphragm is helpful for size reductionand wide angle.

The optical image capturing system of the present invention could beapplied in dynamic focusing optical system. It is superior in correctionof aberration and high imaging quality so that it could be allied inlots of fields.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 100of the first preferred embodiment of the present invention includes,along an optical axis from an object side to an image side, an aperture100, a first lens 110, a second lens 120, a third lens 130, a fourthlens 140, a fifth lens 150, an infrared rays filter 170, an image plane180, and an image sensor 190.

The first lens 110 has positive refractive power, and is made ofplastic. An object-side surface 112 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 114thereof, which faces the image side, is a concave aspheric surface, andthe image-side surface has an inflection point. The first lens 110satisfies SGI121=0.0387148 mm and |SGI121|/(|SGI121|+TP1)=0.061775374,where SGI121 is a displacement in parallel with the optical axis from apoint on the image-side surface of the first lens, through which theoptical axis passes, to the inflection point on the image-side surface,which is the closest to the optical axis.

The first lens 110 further satisfies HIF121=0.61351 mm andHIF121/HOI=0.209139253, where HIF121 is a displacement perpendicular tothe optical axis from a point on the image-side surface of the firstlens, through which the optical axis passes, to the inflection point,which is the closest to the optical axis.

The second lens 120 has negative refractive power, and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 124thereof, which faces the image side, is a convex aspheric surface, andthe image-side surface 124 has an inflection point. The second lens 120satisfies SGI221=−0.0657553 mm and |SGI221|/(|SGI221|+TP2)=0.176581512,where SGI221 is a displacement in parallel with the optical axis from apoint on the image-side surface of the second lens, through which theoptical axis passes, to the inflection point on the image-side surface,which is the closest to the optical axis.

The second lens further satisfies HIF221=0.84667 mm andHIF221/HOI=0.288621101, where HIF221 is a displacement perpendicular tothe optical axis from a point on the image-side surface of the secondlens, through which the optical axis passes, to the inflection point,which is the closest to the optical axis.

The third lens 130 has negative refractive power, and is made ofplastic. An object-side surface 132, which faces the object side, is aconcave aspheric surface, and an image-side surface 134, which faces theimage side, is a convex aspheric surface, and each of them has twoinflection points. The third lens 130 satisfies SGI311=−0.341027 mm;SGI321=−0.231534 mm and |SGI311|/(|SGI311|+TP3)=0.525237108 and|SGI321|/(|SGI321|+TP3)=0.428934269, where SGI311 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI321 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the third lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The third lens 130 satisfies SGI312=−0.376807 mm; SGI322=−0.382162 mm;|SGI312|/(|SGI3121+TP5)=0.550033428; |SGI322|/(|SGI322|+TP3)=0.55352345,where SGI312 is a displacement in parallel with the optical axis, from apoint on the object-side surface of the third lens, through which theoptical axis passes, to the inflection point on the object-side surface,which is the second closest to the optical axis, and SGI322 is adisplacement in parallel with the optical axis, from a point on theimage-side surface of the third lens, through which the optical axispasses, to the inflection point on the image-side surface, which is thesecond closest to the optical axis.

The third lens 130 further satisfies HIF311=0.987648 mm; HIF321=0.805604mm; HIF311/HOI=0.336679052; and HIF321/HOI=0.274622124, where HIF311 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the closestto the optical axis, and the optical axis, and HIF321 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the closest to theoptical axis, and the optical axis.

The third lens 130 further satisfies HIF312=1.0493 mm; HIF322=1.17741mm; HIF312/HOI=0.357695585; and HIF322/HOI=0.401366968, where HIF312 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the secondthe closest to the optical axis, and the optical axis, and HIF322 is adistance perpendicular to the optical axis, between the inflection pointon the image-side surface of the third lens, which is the second theclosest to the optical axis, and the optical axis.

The fourth lens 140 has positive refractive power, and is made ofplastic. Both an object-side surface 142, which faces the object side,and an image-side surface 144, which faces the image side, thereof areconvex aspheric surfaces, and the object-side surface 142 has aninflection point. The fourth lens 140 satisfies SGI411=0.0687683 mm and|SGI411|/(|SGI411+TP4)=0.118221297, where SGI411 is a displacement inparallel with the optical axis from a point on the object-side surfaceof the fourth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis.

The fourth lens 140 further satisfies HIF411=0.645213 mm andHIF411/HOI=0.21994648, where HIF411 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the closest to the optical axis, and theoptical axis.

The fifth lens 150 has negative refractive power, and is made ofplastic. Both an object-side surface 152, which faces the object side,and an image-side surface 154, which faces the image side, thereof areconcave aspheric surfaces. The object-side surface 152 has threeinflection points, and the image-side surface 154 has an inflectionpoint. The fifth lens 150 satisfies SGI511=−0.236079 mm; SGI521=0.023266mm; |SGI511|/(|SGI511|+TP5)=0.418297214; and|SGI521|/(|SGI521|+TP5)=0.066177809, where SGI511 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI521 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the fifth lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The fifth lens 150 further satisfies SGI512=−0.325042 mm and|SGI512|/(|SGI512|+TP5)=0.497505143, where SGI512 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the second closestto the optical axis.

The fifth lens 150 further satisfies SGI513=−0.538131 mm; and|SGI513|/(|SGI513|+TP5)=0.621087839, where SGI513 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the third closestto the optical axis.

The fifth lens 150 further satisfies HIF511=1.21551 mm; HIF521=0.575738mm; HIF511/HOI=0.414354866; and HIF521/HOI=0.196263167, where HIF511 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the fifth lens, which is the closestto the optical axis, and the optical axis, and HIF521 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis.

The fifth lens 150 further satisfies HIF512=1.49061 mm andHIF512/HOI=0.508133629, where HIF512 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the second the closest to the optical axis, andthe optical axis.

The fifth lens 150 further satisfies HIF513=2.00664 mm andHIF513/HOI=0.684042952, where HIF513 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the third closest to the optical axis, and theoptical axis.

The infrared rays filter 170 is made of glass, and between the fifthlens 150 and the image plane 180. The infrared rays filter 170 gives nocontribution to the focal length of the system.

The optical image capturing system of the first preferred embodiment hasthe following parameters, which are f=3.73172 mm; f/HEP=2.05; andHAF=37.5 degrees and tan(HAF)=0.7673, where f is a focal length of thesystem; HAF is a half of the maximum field angle; and HEP is an entrancepupil diameter.

The parameters of the lenses of the first preferred embodiment aref1=3.7751 mm; |f/f1|=0.9885; f5=−3.6601 mm; |f1|>f5; and |f1/f5|=1.0314,where f1 is a focal length of the first lens 110; and f5 is a focallength of the fifth lens 150.

The first preferred embodiment further satisfies |f2|+|f3|+|f4|=77.3594mm; |f1|+|f5|=7.4352 mm; and |f2|+|f3|+|f4|>|f1|+|f5|, where f2 is afocal length of the second lens 120; f3 is a focal length of the thirdlens 130; and f4 is a focal length of the fourth lens 140.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPPR=f/f1+f/f4=1.9785; ΣNPR=f/f2+f/f3+f/f5=−1.2901;ΣPPR/|ΣNPR|=1.5336; |f/f1|=0.9885; |f/f2|=0.0676; |f/f3|=0.2029;|f/f4|=0.9900; and |f/f5|=1.0196, where PPR is a ratio of a focal lengthf of the optical image capturing system to a focal length fp of each ofthe lenses with positive refractive power; and NPR is a ratio of a focallength f of the optical image capturing system to a focal length fn ofeach of lenses with negative refractive power.

The optical image capturing system of the first preferred embodimentfurther satisfies InTL+InB=HOS; HOS=4.5 mm; HOI=2.9335 mm;HOS/HOI=1.5340; HOS/f=1.2059; Intl/HOS=0.7597; and InS=4.19216 mm, whereInTL is a distance between the object-side surface 112 of the first lens110 and the image-side surface 154 of the fifth lens 150; HOS is aheight of the image capturing system, i.e. a distance between theobject-side surface 112 of the first lens 110 and the image plane 180;InS is a distance between the aperture 100 and the image plane 180; HOIis height for image formation of the optical image capturing system,i.e., the maximum image height; and InB is a distance between theimage-side surface 154 of the fifth lens 150 and the image plane 180.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣTP=2.044092 mm and ΣTP/InTL=0.5979, where ΣTP is asum of the thicknesses of the lenses 110-150 with refractive power. Itis helpful for the contrast of image and yield rate of manufacture, andprovides a suitable back focal length for installation of otherelements.

The optical image capturing system of the first preferred embodimentfurther satisfies |R1/R2|=0.3261, where R1 is a radius of curvature ofthe object-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable refractive power to reduce theincrease rate of the spherical aberration.

The optical image capturing system of the first preferred embodimentfurther satisfies (R9−R10)/(R9+R10)=−2.9828, where R9 is a radius ofcurvature of the object-side surface 152 of the fifth lens 150, and R10is a radius of curvature of the image-side surface 154 of the fifth lens150. It may modify the astigmatic field curvature.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPP=f1+f4=7.5444 mm and f1/(f1+f4)=0.5004, where ΣPPis a sum of the focal lengths fp of each lens with positive refractivepower. It is helpful to share the positive refractive power of the firstlens 110 to the other positive lens to avoid the significant aberrationcaused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣNP=f2+f3+f5=−77.2502 mm and f5/(f2+f3+f5)=0.0474,where f2, f3, and f5 are focal lengths of the second, the third, and thefifth lenses, and ΣNP is a sum of the focal lengths fn of each lens withnegative refractive power. It is helpful to share the negativerefractive power of the fifth lens 150 to other negative lenses to avoidthe significant aberration caused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies IN12=0.511659 mm and IN12/f=0.1371, where IN12 is adistance on the optical axis between the first lens 110 and the secondlens 120. It may correct chromatic aberration and improve theperformance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP1=0.587988 mm; TP2=0.306624 mm; and(TP1+IN12)/TP2=3.5863, where TP1 is a central thickness of the firstlens 110 on the optical axis, and TP2 is a central thickness of thesecond lens 120 on the optical axis. It may control the sensitivity ofmanufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP4=0.5129 mm; TP5=0.3283 mm; and(TP5+IN45)/TP4=1.5095, where TP4 is a central thickness of the fourthlens 140 on the optical axis, TP5 is a central thickness of the fifthlens 150 on the optical axis, and IN45 is a distance on the optical axisbetween the fourth lens and the fifth lens. It may control thesensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP3=0.3083 mm and (TP2+TP3+TP4)/ΣTP=0.5517, where TP2,TP3, and TP4 are thicknesses on the optical axis of the second, thethird, and the fourth lenses, and ΣTP is a sum of the centralthicknesses of all the lenses with refractive power on the optical axis.It may finely correct the aberration of the incident rays and reduce theheight of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies InRS51=−0.576871 mm; InRS52=−0.555284 mm;|InRS51|+|InRS52|=1.1132155 mm; |InRS51|/TP5=1.7571; and|InRS52|/TP5=1.691, where InRS51 is a displacement in parallel with theoptical axis from a point on the object-side surface 152 of the fifthlens, through which the optical axis passes, to a point at the maximumeffective semi diameter of the object-side surface 152 of the fifthlens; InRS52 is a displacement in parallel with the optical axis from apoint on the image-side surface 154 of the fifth lens, through which theoptical axis passes, to a point at the maximum effective semi diameterof the image-side surface 154 of the fifth lens; and TP5 is a centralthickness of the fifth lens 150 on the optical axis. It is helpful formanufacturing and shaping of the lenses, and is helpful to reduce thesize.

The optical image capturing system of the first preferred embodimentfurther satisfies NA5/NA2=2.5441, where NA2 is an Abbe number of thesecond lens 120, and NA5 is an Abbe number of the fifth lens 150. It maycorrect the aberration of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies |TDT|=0.6343% and |ODT|=2.5001%, where TDT is TVdistortion; and ODT is optical distortion.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 3.73172 mm; f/HEP = 2.05; HAF = 37.5 deg; tan(HAF) = 0.7673Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 Aperture plane−0.30784 2 1^(st) lens 1.48285 0.587988 plastic 1.5441 56.1 3.77514 34.54742 0.511659 4 2^(nd) lens −9.33807 0.306624 plastic 1.6425 22.465−55.2008 5 −12.8028 0.366935 6 3^(rd) lens −1.02094 0.308255 plastic1.6425 22.465 −18.3893 7 −1.2492 0.05 8 4^(th) lens 2.18916 0.512923plastic 1.5441 56.1 3.7693 9 −31.3936 0.44596 10 5^(th) lens −2.863530.328302 plastic 1.514 57.1538 −3.6601 11 5.75188 0.3 12 Filter plane0.2 1.517 64.2 13 plane 0.58424 14 Image plane −0.00289 plane Referencewavelength: 555 nm

TABLE 2 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 k−1.83479 −20.595808 16.674705 11.425456 −4.642191 A4 6.89867E−022.25678E−02 −1.11828E−01 −4.19899E−02 −7.09315E−02 A6 2.35740E−02−6.17850E−02 −6.62880E−02 −1.88072E−02 9.65840E−02 A8 −4.26369E−025.82944E−02 −3.35190E−02 −6.98321E−02 −7.32044E−03 A10 5.63746E−03−2.73938E−02 −7.28886E−02 −1.13079E−02 −8.96740E−02 A12 7.46740E−02−2.45759E−01 4.05955E−02 6.79127E−02 −3.70146E−02 A14 −6.93116E−023.43401E−01 1.60451E−01 2.83769E−02 5.00641E−02 A16 −2.04867E−02−1.28084E−01 1.24448E−01 −2.45035E−02 7.50413E−02 A18 1.99910E−02−2.32031E−02 −1.94856E−01 2.90241E−02 −5.10392E−02 A20 Surface 7 8 9 1011 k −1.197201 −20.458388 −50 −2.907359 −50 A4 3.64395E−02 −1.75641E−02−7.82211E−04 −1.58711E−03 −2.46339E−02 A6 2.22356E−02 −2.87240E−03−2.47110E−04 −3.46504E−03 6.61804E−04 A8 7.09828E−03 −2.56360E−04−3.78130E−04 4.52459E−03 1.54143E−04 A10 5.05740E−03 7.39189E−05−1.22232E−04 1.05841E−04 −2.83264E−05 A12 −4.51124E−04 −5.53116E−08−1.50294E−05 −5.57252E−04 −5.78839E−06 A14 −1.84003E−03 8.16043E−06−5.41743E−07 4.41714E−05 −2.91861E−07 A16 −1.28118E−03 2.10395E−062.98820E−07 1.80752E−05 8.25778E−08 A18 4.09004E−04 −1.21664E−062.73321E−07 −2.27031E−06 −9.87595E−09 A20

The detail parameters of the first preferred embodiment are listed inTable 1, in which the unit of radius of curvature, thickness, and focallength are millimeter, and surface 0-14 indicates the surfaces of allelements in the system in sequence from the object side to the imageside. Table 2 is the list of coefficients of the aspheric surfaces, inwhich A1-A20 indicate the coefficients of aspheric surfaces from thefirst order to the twentieth order of each aspheric surface. Thefollowing embodiments have the similar diagrams and tables, which arethe same as those of the first embodiment, so we do not describe itagain.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system ofthe second preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an a first lens210, aperture 200, a second lens 220, a third lens 230, a fourth lens240, a fifth lens 250, an infrared rays filter 270, an image plane 280,and an image sensor 290.

The first lens 210 has negative refractive power, and is made ofplastic. An object-side surface 212 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 214thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 212 has an inflection point.

The second lens 220 has positive refractive power, and is made ofplastic. An object-side surface 222, which faces the object side,thereof has a convex aspheric surface, and an image-side surface 224,which faces the image side, thereof is a convex aspheric surface. Theimage-side surface 224 has an inflection point.

The third lens 230 has positive refractive power, and is made ofplastic. An object-side surface 232, which faces the object side, is aconcave surface, and an image-side surface 234, which faces the imageside, is a convex aspheric surface.

The fourth lens 240 has positive refractive power, and is made ofplastic. An object-side surface 242, which faces the object side,thereof is a concave aspheric surface, and an image-side surface 244,which faces the image side, thereof is a convex aspheric surface. Theobject-side surface 242 has two inflection points.

The fifth lens 250 has negative refractive power, and is made ofplastic. An object-side surface 252, which faces the object side, is aconcave aspheric surface, and an image-side surface 254, which faces theimage side, is a concave aspheric surface. The image-side surface 254has three inflection points.

The infrared rays filter 270 is made of glass, and between the fifthlens 250 and the image plane 280. The infrared rays filter 270 gives nocontribution to the focal length of the system.

The optical image capturing system of the second preferred embodimenthas the following parameters, which are |f2|+|f3|+|f4|=18.0089,|f1|+|f5|=12.9291 mm, and |f2|+|f3|+|f4|>f1|+|f5|, where f1 is a focallength of the first lens 210; f2 is a focal length of the second lens220; f3 is a focal length of the third lens 230; f4 is a focal length ofthe fourth lens 240; and f5 is a focal length of the fifth lens 250.

The optical image capturing system of the second preferred embodimentfurther satisfies TP4=1.2412 mm and TP5=0.6575 mm, where TP4 is athickness of the fourth lens on the optical axis, and TP5 is a thicknessof the fifth lens on the optical axis.

In the second embodiment, the second, the third, and the fourth lenses220, 230, 240 are positive lenses, and their focal lengths are f2, f3,and f4. The optical image capturing system of the second preferredembodiment further satisfies ΣPP=f2+f3+f4=18.0089 mm andf2/(f2+f3+f4)=0.2543, where ΣPP is a sum of the focal lengths of eachpositive lens. It is helpful to share the positive refractive power ofthe second lens 220 to other positive lenses to avoid the significantaberration caused by the incident rays.

In the second preferred embodiment, the first and the fifth lenses 210,250 are negative lenses. The optical image capturing system of thesecond preferred embodiment further satisfies ΣNP=f1+f5=12.9291 mm andf5/(f1+f5)=0.2564, where ΣNP is a sum of the focal lengths of eachnegative lens. It is helpful to share the negative refractive power ofthe fifth lens 250 to the other negative lens to avoid the significantaberration caused by the incident rays.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 3.0344 mm; f/HEP = 1.4; HAF = 50.0001 deg; tan(HAF) = 1.1918Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 1^(st) lens4.25671 0.618596 plastic 1.514 56.8 −9.61357 2 2.17695 3.59367 3Aperture infinity −0.45087 4 2^(nd) lens 3.19998 0.991506 plastic 1.56558 4.57882 5 −12.1921 0.861099 6 3^(rd) lens −9.57302 1.688494 plastic1.565 58 4.33703 7 −2.0807 0.05 8 4^(th) lens −13.9663 1.241209 plastic1.565 58 9.09303 9 −3.8856 0.752472 10 5^(th) lens −2.31282 0.65747plastic 1.65 21.4 −3.31548 11 40.0241 0.1 12 Filter infinity 0.2 1.51764.2 13 infinity 0.345892 14 Image infinity 0.054108 plane Referencewavelength: 555 nm; position of blocking light: blocking at the secondsurface with effective semi diameter of 2.085 mm, and blocking at thesixth surface with effective semi diameter of 1.555 mm.

TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 k−0.063097 −0.636011 −7.332739 45.57282 34.992378 A4 4.12857E−031.66090E−02 3.00766E−02 1.27111E−02 −3.29444E−02 A6 5.33000E−042.43633E−04 −2.13000E−03 −1.58547E−02 3.31871E−03 A8 2.08672E−051.70214E−03 −4.10871E−04 2.10022E−02 −2.37243E−03 A10 −1.77706E−05−2.09680E−04 1.91916E−03 −9.79115E−03 −2.06193E−03 A12 1.65599E−06−2.31553E−05 −9.57323E−04 1.45551E−03 1.32959E−03 A14 −6.41659E−081.01291E−05 1.97822E−04 1.89281E−04 −3.78323E−04 Surface 7 8 9 10 11 k−2.916895 −2.334474 0.825039 −0.308735 −50 A4 −1.62332E−02 8.85524E−03−2.94779E−03 1.19059E−03 −4.42662E−06 A6 −1.77972E−03 −8.44266E−043.34787E−03 8.34248E−04 −8.12234E−04 A8 −3.01884E−04 −3.31823E−05−6.01739E−05 1.02036E−04 3.48047E−05 A10 −4.77616E−06 −1.87263E−05−5.79147E−05 −1.55490E−05 3.45577E−06 A12 1.31363E−05 −1.96543E−06−6.75657E−06 −1.52727E−06 1.49766E−07 A14 −5.31158E−06 −2.41878E−071.13576E−06 2.97845E−07 −2.61195E−08

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment based on Table 3 and Table4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) InRS51 InRS52 HVT51HVT52 |ODT| |TDT| −1.43194 −0.11881 0.00000 1.56946 2.01475 1.02529|f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f1/f2| 0.3156 0.6627 0.6996 0.33370.9152 2.0998 ΣPPR/ ΣPPR ΣNPR |ΣNPR| ΣPP ΣNP f1/ΣPP 1.69606 1.230861.37795 18.00888 −12.92905 0.25425 HVT52/ HVT52/ f5/ΣNP IN12/f|InRS51|/TP5 |InRS52|/TP5 HOI HOS 0.25644 1.03572 1.15366 0.095720.41964 0.14663 InTL HOS HOS/HOI InS/HOS InTL/HOS ΣTP/InTL 10.7037010.00370 2.86195 0.60646 0.93460 0.51953 (TP1 + IN12)/ (TP5 + IN45)/ TP2TP4 (TP2 + TP3 + TP4)/ΣTP 3.79362 1.13594 0.75447

The exact values of the inflection points of the second embodiment basedon Table 3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) HIF111 2.85913HIF111/HOI 0.764473 SGI111 1.44042 |SGI111|/(|SGI111| + TP1) 0.822126HIF221 0.883383 HIF221/HOI 0.236199 SGI221 −0.0287191|SGI221|/(|SGI221| + TP2) 0.02815 HIF411 0.933078 HIF411/HOI 0.249486SGI411 −0.024997 |SGI411|/(|SGI411| + TP4) 0.019742 HIF412 1.36406HIF412/HOI 0.364722 SGI412 −0.0420986 |SGI412|/(|SGI412| + TP4) 0.032805HIF521 1.01982 HIF521/HOI 0.272679 SGI521 0.0120174 |SGI521|/(|SGI521| +TP5) 0.01795 HIF522 2.6273 HIF522/HOI 0.702487 SGI522 −0.055377|SGI522|/(|SGI522| + TP5) 0.077684 HIF523 3.11179 HIF523/HOI 0.832029SGI523 −0.109585 |SGI523|/(|SGI523| + TP5) 0.142865

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an a first lens310, aperture 300, a second lens 320, a third lens 330, a fourth lens340, a fifth lens 350, an infrared rays filter 370, an image plane 380,and an image sensor 390.

The first lens 310 has negative refractive power, and is made ofplastic. An object-side surface 312 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 314thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 312 has an inflection point.

The second lens 320 has positive refractive power, and is made ofplastic. An object-side surface 322 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 324thereof, which faces the image side, is a concave aspheric surface.

The third lens 330 has positive refractive power, and is made ofplastic. An object-side surface 332, which faces the object side, is aconvex aspheric surface, and an image-side surface 334 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 332 has an inflection point.

The fourth lens 340 has a positive refractive power, and is made ofplastic. An object-side surface 342, which faces the object side, is aconvex aspheric surface, and an image-side surface 344, which faces theimage side, is a convex aspheric surface, and the object-side surface342 has a inflection point.

The fifth lens 350 has negative refractive power, and is made ofplastic. Both an object-side surface 352, which faces the object side,and an image-side surface 354, which faces the image side, are concaveaspheric surfaces. The object-side surface 352 and the image-sidesurface 354 each has an inflection point.

The infrared rays filter 370 is made of glass, and between the fifthlens 350 and the image plane 380. The infrared rays filter 370 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third preferred embodiment are|f2|+|f3|+|f4|=17.3009 mm; |f1|+|f5|=11.5697 mm; and|f2|+|f3|+|f4|>f1|+|f5|, where f1 is a focal length of the first lens310; f2 is a focal length of the second lens 320; f3 is a focal lengthof the third lens 330; and f4 is a focal length of the fourth lens 340;and f5 is a focal length of the fifth lens 350.

The optical image capturing system of the third preferred embodimentfurther satisfies TP4=1.8163 mm and TP5=0.6449 mm, where TP4 is athickness of the fourth lens 340 on the optical axis, and TP5 is athickness of the fifth lens 350 on the optical axis.

In the third embodiment, the second, the third, and the fourth lenses320, 330, 340 are positive lenses, and their focal lengths are f2, f3,and f4. The optical image capturing system of the third preferredembodiment further satisfies ΣPP=f2+f3+f4=17.3009 mm andf2/(f2+f3+f4)=0.3664, where ΣPP is a sum of the focal lengths of eachpositive lens. It is helpful to share the positive refractive power ofthe second lens 320 to other positive lenses to avoid the significantaberration caused by the incident rays.

In the third embodiment, the first and the fifth lenses 310 and 350 arenegative lenses, and their focal lengths are f1 and f5. The opticalimage capturing system of the third preferred embodiment furthersatisfies ΣNP=f1+f5=−11.5697 mm and f5/(f1+f5)=0.2009, where ΣNP is asum of the focal lengths of each negative lens. It is helpful to sharethe negative refractive power of the fifth lens 350 to the othernegative lens.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 3.03968 mm; f/HEP = 1.6; HAF = 50.001 deg; tan(HAF) = 1.1918Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 1^(st) lens4.01439 0.750426 plastic 1.514 56.8 −9.24529 2 2.0407 3.602079 3Aperture infinity −0.41192 4 2^(nd) lens 2.45222 0.895428 plastic 1.56558 6.33819 5 6.7059 0.560941 6 3^(rd) lens 16.39663 0.932245 plastic1.565 58 7.93877 7 −6.07374 0.656244 8 4^(th) lens 4.42136 1.816338plastic 1.565 58 3.02394 9 −2.38293 0.404703 10 5^(th) lens −1.646640.644876 plastic 1.65 21.4 −2.32439 11 23.53223 0.1 12 Filter infinity0.2 1.517 64.2 13 infinity 0.340754 14 Image infinity 0.071118 planeReference wavelength: 555 nm

TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 k−0.188212 −1.927558 −6.483417 17.661231 −50 A4 7.68638E−04 3.07042E−025.43977E−02 7.24169E−03 −2.98521E−02 A6 4.63031E−04 −3.56515E−03−7.98057E−03 −8.35956E−03 −7.17571E−03 A8 3.17897E−05 2.06226E−03−3.53704E−04 1.30343E−02 4.28411E−03 A10 −1.77360E−05 −1.57112E−042.84484E−03 −6.95135E−03 −5.49235E−03 A12 1.62062E−06 −4.69400E−05−1.02505E−03 1.36626E−03 1.23207E−03 A14 −4.91604E−08 7.39998E−061.91368E−04 3.58830E−04 −4.10727E−04 Surface 7 8 9 10 11 k −35.446479−31.675225 −2.470764 −1.570351 49.288992 A4 −6.31537E−02 −1.90351E−03−2.34691E−04 −4.25006E−04 −4.62570E−03 A6 6.03804E−03 −1.80684E−032.48121E−03 −1.59178E−04 −7.10887E−04 A8 4.67416E−03 −1.67035E−03−5.86228E−04 −3.75218E−05 3.42924E−05 A10 −8.03112E−03 4.79102E−04−1.95503E−04 −9.21011E−05 2.88730E−06 A12 3.31979E−03 −5.59413E−051.88094E−05 −1.10180E−05 3.68463E−07 A14 −5.35680E−04 3.70440E−071.13259E−06 3.53632E−06 −4.74132E−08

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment based on Table 5 and Table6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) InRS51 InRS52 HVT51HVT52 |ODT| |TDT| −1.63543 −0.34495 0.00000 1.35891 2.06135 0.63350|f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f1/f2| 0.32878 0.47958 0.382891.00521 1.30773 1.45866 ΣPPR/ ΣPPR ΣNPR |ΣNPR| ΣPP ΣNP f1/ΣPP 1.867681.63651 1.14125 17.30090 −11.56968 0.36635 HVT52/ HVT52/ f5/ΣNP IN12/f|InRS51|/TP5 |InRS52|/TP5 HOI HOS 0.20090 1.04951 0.90040 0.189910.36334 0.12865 InTL HOS HOS/HOI InS/HOS InTL/HOS ΣTP/InTL 10.563209.85136 2.82439 0.58796 0.93261 0.51153 (TP1 + IN12)/ (TP5 + IN45)/ TP2TP4 (TP2 + TP3 + TP4)/ΣTP 4.40078 0.57785 0.72312

The exact values of the inflection points of the third embodiment basedon Table 5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) HIF111 3.38542HIF111/HOI 0.905193 SGI111 1.96546 |SGI111|/(|SGI111| + TP1) 0.696924HIF311 0.388976 HIF311/HOI 0.104004 SGI311 0.00387603|SGI311|/(|SGI311| + TP3) 0.019012 HIF411 0.856064 HIF411/HOI 0.228894SGI411 0.0650844 |SGI411|/(|SGI411| + TP4) 0.02578 HIF511 2.25435HIF511/HOI 0.602767 SGI511 −1.51505 |SGI511|/(|SGI511| + TP5) 0.77167HIF521 0.823129 HIF521/HOI 0.220088 SGI521 0.012288 |SGI521|/(|SGI521| +TP5) 0.026679

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system ofthe fourth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 410,an aperture 400, a second lens 420, a third lens 430, a fourth lens 440,a fifth lens 450, an infrared rays filter 470, an image plane 480, andan image sensor 490.

The first lens 410 has negative refractive power, and is made ofplastic. An object-side surface 412 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 414thereof, which faces the image side, is a concave aspheric surface, andthe object-side surface 412 has an inflection point.

The second lens 420 has positive refractive power, and is made ofplastic. An object-side surface 422 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 424thereof, which faces the image side, is a convex aspheric surface, andthe image-side surface 424 has an inflection point.

The third lens 430 has negative refractive power, and is made ofplastic. An object-side surface 432 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 434thereof, which faces the image side, is a concave aspheric surface. Theimage-side surface 434 has an inflection point.

The fourth lens 440 has positive refractive power, and is made ofplastic. An object-side surface 442, which faces the object side, is aconvex aspheric surface, and an image-side surface 444, which faces theimage side, is a convex aspheric surface. The object-side surface 442has an inflection point.

The fifth lens 450 has negative refractive power, and is made ofplastic. An object-side surface 452 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 454thereof, which faces the image side, is a convex aspheric surface. Theimage-side surface 454 has an inflection point.

The infrared rays filter 470 is made of glass, and between the fifthlens 450 and the image plane 480. The infrared rays filter 470 gives nocontribution to the focal length of the system.

The optical image capturing system of the fourth preferred embodimenthas the following parameters, which are |f2|+|f3|+f4|=9.4372 mm and|f1|+|f5|=10.3255 mm, where f1 is a focal length of the first lens 410;f2 is a focal length of the second lens 420; f3 is a focal length of thethird lens 430; f4 is a focal length of the fourth lens 440; and f5 is afocal length of the fifth lens 450.

The optical image capturing system of the fourth preferred embodimentfurther satisfies TP4=2.4595 mm and TP5=0.4483 mm, where TP4 is athickness of the fourth lens 340 on the optical axis, and TP5 is athickness of the fifth lens 350 on the optical axis.

In the fourth embodiment, the second and the fourth lenses 420, 440 arepositive lenses, and their focal lengths are f2 and f4. The opticalimage capturing system of the fourth preferred embodiment furthersatisfies ΣPP=f2+f4=5.4280 mm and f2/(f2+f4)=0.5411, where ΣPP is a sumof the focal lengths of each positive lens. It is helpful to share thepositive refractive power of the second lens 420 to the other positivelens to avoid the significant aberration caused by the incident rays.

In the fourth embodiment, the first and the third, and the fifth lenses410, 430, and 450 are negative lenses, and their focal lengths are f1,f3, and f5. The optical image capturing system of the fourth preferredembodiment further satisfies ΣNP=f1+f3+f5=−14.3348 mm, andf5/(f1+f3+f5)=0.2371, where ΣNP is a sum of the focal lengths of eachnegative lens. It is helpful to share the negative refractive power ofthe fifth lens to other negative lenses.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 3.0530 mm; f/HEP = 1.8; HAF = 49.9983 deg; tan(HAF) = 1.1913Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 1^(st) lens3.55841 0.854734 plastic 1.514 56.8 −6.92738 2 1.63695 4.122968 3Aperture infinity −0.45575 4 2^(nd) lens 2.48119 0.878087 plastic 1.56558 2.93732 5 −4.41207 0.337905 6 3^(rd) lens −2.32963 0.2 plastic 1.56558 −4.00926 7 95.3198 0.130982 8 4^(th) lens 3.13381 2.459503 plastic1.565 58 2.49063 9 −1.83945 0.485105 10 5^(th) lens −1.22692 0.44829plastic 1.65 21.4 −3.39816 11 −3.12688 0.1 12 Filter infinity 0.2 1.51764.2 13 infinity 1.197461 14 Image infinity 0.040743 plane Referencewavelength: 555 nm

TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 k−0.261662 −1.46894 −2.790324 −10.029144 −22.228292 A4 3.65153E−034.56726E−02 2.27407E−02 2.69999E−02 −4.28475E−03 A6 3.06318E−047.69323E−04 3.31417E−03 −2.52945E−02 8.68510E−03 A8 1.37347E−062.03073E−03 −3.04446E−03 1.95943E−02 −1.93399E−02 A10 −1.87769E−05−1.85906E−04 2.43533E−03 −9.00466E−03 4.76376E−03 A12 1.68257E−06−3.64163E−05 −1.04092E−03 1.48464E−03 1.32581E−03 A14 −4.60668E−084.22970E−06 2.01307E−04 1.17402E−04 −5.05144E−04 Surface 7 8 9 10 11 k50 −50 −2.168129 −0.376671 −5.85068 A4 −1.17742E−02 −5.02682E−026.99681E−03 7.83552E−03 −4.11659E−02 A6 −4.42778E−02 3.90149E−02−8.46599E−04 −1.25727E−02 7.41321E−03 A8 4.65479E−02 −2.18298E−028.55377E−04 5.62973E−03 −7.46359E−04 A10 −4.21161E−02 6.84650E−03−1.19608E−04 −3.06883E−04 1.66012E−05 A12 1.84882E−02 −1.28557E−03−1.83880E−06 −9.11343E−05 1.84985E−06 A14 −3.07707E−03 9.29085E−057.56548E−07 9.72541E−06 −1.29022E−07

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment based on Table 7 and Table8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) InRS51 InRS52 HVT51HVT52 |ODT| |TDT| −1.30850 −0.65584 0.00000 0.00000 2.01834 0.63296|f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f1/f2| 0.44072 1.03940 0.761501.22581 0.89844 2.35840 ΣPPR/ ΣPPR ΣNPR |ΣNPR| ΣPP ΣNP f1/ΣPP 2.265212.10066 1.07833 5.42795 −14.33480 0.54115 HVT52/ HVT52/ f5/ΣNP IN12/f|InRS51|/TP5 |InRS52|/TP5 HOI HOS 0.23706 1.20117 0.53202 0.266660.00000 0.00000 InTL HOS HOS/HOI InS/HOS InTL/HOS ΣTP/InTL 11.000009.46183 2.94118 0.54748 0.86017 0.51159 (TP1 + IN12)/ (TP5 + IN45)/ TP2TP4 (TP2 + TP3 + TP4)/ΣTP 5.14978 0.37951 0.73081

The exact values of the inflection points of the fourth embodiment basedon Table 7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) HIF111 2.71895HIF111/HOI 0.726992 SGI111 1.31615 |SGI111|/(|SGI111| + TP1) 0.606274HIF221 1.21759 HIF221/HOI 0.325559 SGI221 −0.12145 |SGI221|/(|SGI221| +TP2) 0.121508 HIF321 0.227175 HIF321/HOI 0.060742 SGI321 0.0002336|SGI321|/(|SGI321| + TP3) 0.001167 HIF411 0.490962 HIF411/HOI 0.131273SGI411 0.0302227 |SGI411|/(|SGI411| + TP4) 0.012139 HIF521 1.93269HIF521/HOI 0.516762 SGI521 −0.483897 |SGI521|/(|SGI521| + TP5) 0.519099

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 510,an aperture 500, a second lens 520, a third lens 530, a fourth lens 540,a fifth lens 550, an infrared rays filter 570, an image plane 580, andan image sensor 590.

The first lens 510 has negative refractive power, and is made ofplastic. An object-side surface 512 thereof, which faces the objectside, a convex aspheric surface, and an image-side surface 514 thereof,which faces the image side, is concave aspheric surface. The object-sidesurface 512 has an inflection point.

The second lens 520 has positive refractive power, and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 524thereof, which faces the image side, is a concave aspheric surface.

The third lens 530 has positive refractive power, and is made ofplastic. An object-side surface 532 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 534thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 532 and the image-side surface 534 each has aninflection point.

The fourth lens 540 has a positive refractive power, and is made ofplastic. An object-side surface 542, which faces the object side, is aconvex aspheric surface, and an image-side surface 544, which faces theimage side, is a convex aspheric surface. The object-side surface 542has three inflection points, and the image-side surface 544 has twoinflection points.

The fifth lens 550 has negative refractive power, and is made ofplastic. An object-side surface 552 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 554thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 552 and the image-side surface 554 each has aninflection point.

The infrared rays filter 570 is made of glass, and between the fifthlens 550 and the image plane 580. The infrared rays filter 570 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fifth preferred embodiment are|f2|+|f3|+|f4|=18.8461 mm; |f1|+|f5|=11.8297 mm; and|f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focal length of the first lens510; f2 is a focal length of the second lens 520; f3 is a focal lengthof the third lens 530; and f4 is a focal length of the fourth lens 540;and f5 is a focal length of the fifth lens 550.

The optical image capturing system of the fifth preferred embodimentfurther satisfies TP4=0.6922 mm and TP5=0.6116 mm, where TP4 is athickness of the fourth lens 540 on the optical axis, and TP5 is athickness of the fifth lens 550 on the optical axis.

In the fifth preferred embodiment, the second the third, and the fourthlenses 520, 530, and 540 are positive lenses, and their focal lengthsare f2, f3, and f4. The optical image capturing system of the fifthpreferred embodiment further satisfies ΣPP=f2+f3+f4=18.8461 mm andf2/(f2+f3+f4)=0.3150, where ΣPP is a sum of the focal lengths of eachpositive lens. It is helpful to share the positive refractive power ofthe second lens 520 to other positive lenses to avoid the significantaberration caused by the incident rays.

In the fifth preferred embodiment, the first and the fifth lenses 510and 550 are negative lenses, and their focal lengths are f1 and f5. Theoptical image capturing system of the fifth preferred embodiment furthersatisfies ΣNP=f1+f5=−11.8297 mm and f5/(f1+f5)=0.5112, where ΣNP is asum of the focal lengths of each negative lens. It is helpful to sharethe negative refractive power of the fifth lens 550 to the othernegative lens to avoid the significant aberration caused by the incidentrays.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 3.0110 mm; f/HEP = 1.8; HAF = 50.0005 deg; tan(HAF) = 1.1918Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 1^(st) lens2.4416 1.33397 plastic 1.514 56.8 −5.78209 2 1.09283 3.810457 3 Apertureinfinity −0.41658 4 2^(nd) lens 2.56144 0.659919 plastic 1.565 585.93639 5 9.73013 0.372345 6 3^(rd) lens 3.99328 0.529426 plastic 1.56558 9.45354 7 14.92539 0.47637 8 4^(th) lens 11.5211 0.692245 plastic1.565 58 3.45615 9 −2.30886 0.054224 10 5^(th) lens −2.89407 0.611606plastic 1.65 21.4 −6.04763 11 −11.6204 0.1 12 Filter infinity 0.2 1.51764.2 13 infinity 2.474366 14 Image infinity 0.101003 plane Referencewavelength: 555 nm

TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 k−0.633536 −0.935763 −1.728443 43.837899 −9.817479 A4 1.83500E−035.22219E−02 1.22770E−02 −2.04941E−02 −4.52849E−02 A6 6.33517E−063.32192E−03 1.16552E−02 8.68459E−03 −1.36907E−03 A8 −5.90072E−062.61514E−03 −7.35894E−03 2.72904E−03 −7.35731E−03 A10 −2.01256E−05−4.78696E−04 3.87301E−03 −4.32120E−03 −2.86084E−03 A12 2.06146E−066.37064E−05 −8.89768E−04 1.49485E−03 1.29334E−03 A14 −6.12583E−08−2.30897E−05 1.97479E−04 1.52558E−04 −3.80275E−04 Surface 7 8 9 10 11 k50 27.184647 −10.091811 0.978597 −47.502995 A4 −7.07231E−02 −4.81626E−02−4.92108E−02 1.13572E−02 −7.47558E−03 A6 −4.31754E−02 7.42561E−03−1.74474E−03 −2.74352E−02 2.14010E−03 A8 4.38191E−02 −3.41505E−02−1.03425E−02 −3.40823E−03 −6.22200E−04 A10 −3.64585E−02 9.88966E−033.72855E−03 1.39620E−02 2.29905E−05 A12 1.63030E−02 6.24004E−031.55483E−03 −6.97756E−03 6.14490E−05 A14 −3.00154E−03 −2.16587E−03−5.13262E−04 1.15755E−03 −7.98545E−06

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 9 and Table10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) InRS51 InRS52 HVT51HVT52 |ODT| |TDT| −0.62749 −0.14034 0.00000 1.87610 2.03929 0.50098|f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f1/f2| 0.52074 0.50720 0.318500.87119 0.49787 0.97401 ΣPPR/ ΣPPR ΣNPR |ΣNPR| ΣPP ΣNP f1/ΣPP 1.696891.01861 1.66589 18.84608 −11.82972 0.31499 HVT52/ HVT52/ f5/ΣNP IN12/f|InRS51|/TP5 |InRS52|/TP5 HOI HOS 0.51122 1.12718 0.90646 0.202730.50163 0.17056 InTL HOS HOS/HOI InS/HOS InTL/HOS ΣTP/InTL 10.999408.12398 2.94102 0.53230 0.73858 0.47109 (TP1 + IN12)/ (TP5 + IN45)/ TP2TP4 (TP2 + TP3 + TP4)/ΣTP 7.16429 0.96184 0.49164

The exact values of the inflection points of the fifth embodiment basedon Table 9 and Table 10 are listed in the following table:

Fifth Embodiment

Fifth embodiment (Reference wavelength: 555 nm) HIF111 2.68797HIF111/HOI 0.718709 SGI111 1.25958 |SGI111|/(|SGI111| + TP1) #REF!HIF321 1.35714 HIF321/HOI 0.362872 SGI321 −0.35849 |SGI321|/(|SGI321| +TP3) 0.403743 HIF521 1.81195 HIF521/HOI 0.484479 SGI521 −0.454608|SGI521|/(|SGI521| + TP5) 0.426376

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 610,an aperture 600, a second lens 620, a third lens 630, a fourth lens 640,a fifth lens 650, an infrared rays filter 670, an image plane 680, andan image sensor 690.

The first lens 610 has negative refractive power, and is made ofplastic. An object-side surface 612 thereof, which faces the objectside, a convex aspheric surface, and an image-side surface 614 thereof,which faces the image side, is concave aspheric surface. The object-sidesurface 612 has an inflection point.

The second lens 620 has positive refractive power, and is made ofplastic. An object-side surface 622 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 624thereof, which faces the image side, is a convex aspheric surface.

The third lens 630 has positive refractive power, and is made ofplastic. An object-side surface 632 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 634thereof, which faces the image side, is a convex aspheric surface. Theimage-side surface 634 has an inflection point.

The fourth lens 640 has a positive refractive power, and is made ofplastic. An object-side surface 642, which faces the object side, is aconcave aspheric surface, and an image-side surface 644, which faces theimage side, is a convex aspheric surface.

The fifth lens 650 has negative refractive power, and is made ofplastic. An object-side surface 652 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 654thereof, which faces the image side, is a convex aspheric surface. Theimage-side surface 654 has an inflection point.

The infrared rays filter 670 is made of glass, and between the fifthlens 650 and the image plane 680. The infrared rays filter 670 gives nocontribution to the focal length of the system.

The parameters of the lenses of the sixth preferred embodiment are|f2|+|f3|+|f4|=33.5491 mm; |f1|+|f5|=10.9113 mm; and|f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focal length of the first lens610; f2 is a focal length of the second lens 620; f3 is a focal lengthof the third lens 630; and f4 is a focal length of the fourth lens 640;and f5 is a focal length of the fifth lens 650.

The optical image capturing system of the sixth preferred embodimentfurther satisfies TP4=1.1936 mm and TP5=0.4938 mm, where TP4 is athickness of the fourth lens 640 on the optical axis, and TP5 is athickness of the fifth lens 650 on the optical axis.

In the sixth preferred embodiment, the second, the third, and the fourthlenses 620, 630, and 640 are positive lenses, and their focal lengthsare f2, f3, and f4. The optical image capturing system of the sixthpreferred embodiment further satisfies ΣPP=f2+f3+f4=33.5491 mm andf2/(f2+f3+f4)=0.1012, where ΣPP is a sum of the focal lengths of eachpositive lens. It is helpful to share the positive refractive power ofthe first lens 610 to other positive lenses to avoid the significantaberration caused by the incident rays.

In the sixth preferred embodiment, the first and the fifth lenses 610and 650 are negative lenses, and their focal lengths are f1 and f5. Theoptical image capturing system of the sixth preferred embodiment furthersatisfies ΣNP=f1+f5=−10.9113 mm and f5/(f1+f5)=0.3956, where ΣNP is asum of the focal lengths of each negative lens. It is helpful to sharethe negative refractive power of the fifth lens 650 to the othernegative lens to avoid the significant aberration caused by the incidentrays.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 3.06009 mm; f/HEP = 2.0; HAF = 50.0007 deg; tan(HAF) =1.1918 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane infinity 11^(st) lens 3.50904 0.796742 plastic 1.514 56.8 −6.5946 2 1.593564.172675 3 Aperture infinity −0.36597 4 2^(nd) lens 2.36495 0.703695plastic 1.565 58 3.39442 5 −9.20538 0.766828 6 3^(rd) lens −3.966650.773956 plastic 1.565 58 26.056 7 −3.3475 0.128823 8 4^(th) lens−19.1128 1.193613 plastic 1.565 58 4.09863 9 −2.11807 0.384924 10 5^(th)lens −1.36773 0.49381 plastic 1.65 21.4 −4.31667 11 −3.02608 0.1 12Filter infinity 0.2 1.517 64.2 13 infinity 1.623541 14 Image infinity0.027363 plane Reference wavelength: 555 nm

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 k−0.364446 −0.797073 −0.976489 45.184506 −4.955335 A4 3.03151E−032.47474E−02 1.19749E−02 1.53107E−02 −3.15766E−02 A6 3.11535E−041.09227E−03 3.29173E−03 −8.86750E−03 −7.36452E−03 A8 6.03641E−062.11777E−03 −1.41246E−03 1.63700E−02 9.93051E−03 A10 −1.90703E−05−1.38673E−04 2.09487E−03 −9.72154E−03 −1.85429E−02 A12 1.68207E−06−2.43097E−05 −1.07114E−03 1.55553E−03 8.34169E−03 A14 −4.42840E−085.42793E−07 4.80842E−05 4.47459E−04 −9.07537E−04 Surface 7 8 9 10 11 k−4.26661 −17.215386 0.01572 −0.56999 −1.957095 A4 −2.02516E−02−2.81080E−02 1.04073E−02 2.87988E−02 4.78950E−03 A6 −1.45844E−021.26828E−02 4.37395E−04 −1.68233E−04 −4.65598E−04 A8 1.47638E−02−2.57367E−02 −8.83115E−04 −1.52077E−04 1.47492E−04 A10 −8.52821E−031.81999E−02 −2.21655E−04 2.58158E−05 −1.37919E−05 A12 −3.64995E−05−8.19803E−03 −4.19162E−05 −6.96422E−06 1.27305E−06 A14 8.24445E−041.22153E−03 5.89942E−06 1.05801E−05 −1.66946E−07

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 11 and Table12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) InRS51 InRS52 HVT51HVT52 |ODT| |TDT| −1.19340 −0.63635 0.00000 0.00000 1.99808 0.23490|f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f1/f2| 0.46403 0.90151 0.117440.74661 0.70890 1.94278 ΣPPR/ ΣPPR ΣNPR |ΣNPR| ΣPP ΣNP f1/ΣPP 1.765561.17293 1.50526 33.54905 −10.91127 0.10118 HVT52/ HVT52/ f5/ΣNP IN12/f|InRS51|/TP5 |InRS52|/TP5 HOI HOS 0.39562 1.24399 0.99982 0.533130.00000 0.00000 InTL HOS HOS/HOI InS/HOS InTL/HOS ΣTP/InTL 11.000009.04910 2.94118 0.54823 0.82265 0.43781 (TP1 + IN12)/ (TP5 + IN45)/ TP2TP4 (TP2 + TP3 + TP4)/ΣTP 6.54183 0.73620 0.67425

The exact values of the inflection points of the fifth embodiment basedon Table 11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) HIF111 2.68797HIF111/HOI 0.718709 SGI111 1.25958 |SGI111|/(|SGI111| + TP1) 0.61254HIF321 1.35714 HIF321/HOI 0.362872 SGI321 −0.35849 |SGI321|/(|SGI321| +TP3) 0.316563 HIF521 1.81195 HIF521/HOI 0.484479 SGI521 −0.454608|SGI521|/(|SGI521| + TP5) 0.479333

It must be pointed out that the embodiments described above are onlysome preferred embodiments of the present invention. All equivalentstructures which employ the concepts disclosed in this specification andthe appended claims should fall within the scope of the presentinvention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having negative refractive power; a second lens havingrefractive power; a third lens having refractive power; a fourth lenshaving refractive power; a fifth lens having refractive power; and animage plane; wherein the optical image capturing system consists of thefive lenses with refractive power; at least two of the lenses from thefirst lens to the fifth lens each has at least an inflection point on atleast a surface thereof; at least one of the lenses from the second lensto the fifth lens has positive refractive power; the fifth lens has anobject-side surface, which faces the object side, and an image-sidesurface, which faces the image side, and both the object-side surfaceand the image-side surface of the fifth lens are aspheric surfaces;wherein the optical image capturing system satisfies:1.2≦f/HEP≦3.0;0.5≦HOS/f≦3.0;0 mm<HIF≦5 mm; and0<HIF/InTL≦5; where f is a focal length of the optical image capturingsystem; HEP is an entrance pupil diameter of the optical image capturingsystem; HOS is a distance in parallel with the optical axis from anobject-side surface of the first lens to the image plane; HIF is adistance perpendicular to the optical axis measured from the opticalaxis to any one of the inflection points on any one of the surfaceshaving at least an inflection point; InTL is a distance in parallel withthe optical axis between an object-side surface, which faces the objectside, of the first lens and the image-side surface of the fifth lens. 2.The optical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:0 degree<HAF≦70 degrees;|TDT|<60%; and|ODT|≦50%; where HAF is a half of a view angle of the optical imagecapturing system; TDT is a TV distortion; and ODT is an opticaldistortion.
 3. The optical image capturing system of claim 1, whereinthe fifth lens has at least an inflection point on at least one of theobject-side surface and the image-side surface.
 4. The optical imagecapturing system of claim 1, wherein the optical image capturing systemfurther satisfies:0 mm<SGI≦1 mm; where SGI is a distance in parallel with the optical axisfrom a point on the surface of the lens, through which the optical axispasses, to the inflection point on the surface.
 5. The optical imagecapturing system of claim 1, wherein the fourth lens has positiverefractive power, and the fifth lens has negative refractive power. 6.The optical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:0.6≦InTL/HOS≦0.9; where InTL is a distance between an object-sidesurface, which face the object side, of the first lens and theimage-side surface of the fifth lens.
 7. The optical image capturingsystem of claim 1, further comprising an aperture and an image sensor onthe image plane, wherein the optical image capturing system furthersatisfies:0.5≦InS/HOS≦1.1; and0<HIF/HOI≦0.9; where InS is a distance in parallel with the optical axisbetween the aperture and the image plane, and HOI is a half of adiagonal line height of an effective sensing area of the image sensor.8. An optical image capturing system, in order along an optical axisfrom an object side to an image side, comprising: a first lens havingnegative refractive power; a second lens having refractive power; athird lens having refractive power; a fourth lens having refractivepower; a fifth lens having negative refractive power; and an imageplane; wherein the optical image capturing system consists of the fivelenses with refractive power; at least two of the lenses from the firstlens to the fifth lens each has at least an inflection point on asurface thereof; at least one of the lenses from the second lens to thefourth lens has positive refractive power; the fifth lens has anobject-side surface, which faces the object side, and an image-sidesurface, which faces the image side, and both the object-side surfaceand the image-side surface of the fifth lens are aspheric surfaces;wherein the optical image capturing system satisfies:1.2≦f/HEP≦3.0;0.5≦HOS/f≦3.0;0.4≦|tan(HAF)|≦3.0;|TDT|<60%; and|ODT|≦50%; where f1, f2, f3, f4, and f5 are focal lengths of the firstlens to the fifth lens, respectively; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance in parallel with the opticalaxis between an object-side surface, which face the object side, of thefirst lens and the image plane; TDT is a TV distortion; and ODT is anoptical distortion.
 9. The optical image capturing system of claim 8,wherein at least one of the third lens and the fourth lens has at leastan inflection point on at least a surface thereof.
 10. The optical imagecapturing system of claim 8, wherein the object-side surface and theimage-side surface of the fifth lens each has at least an inflectionpoint.
 11. The optical image capturing system of claim 8, wherein theoptical image capturing system further satisfies:0 mm<HOS≦7 mm.
 12. The optical image capturing system of claim 8,wherein the optical image capturing system further satisfies:0 mm<InTL≦5 mm; where InTL is a distance in parallel with the opticalaxis between the object-side surface of the first lens and theimage-side surface of the fifth lens.
 13. The optical image capturingsystem of claim 8, wherein the optical image capturing system furthersatisfies:0 mm<ΣTP≦4 mm; where ΣTP is a sum of thicknesses of all the lenseshaving positive refractive power.
 14. The optical image capturing systemof claim 8, wherein the optical image capturing system furthersatisfies:0<SGI521/(TP5+SGI521)≦0.6; where SGI521 is a displacement in parallelwith the optical axis, from a point on the image-side surface of thefifth lens, through which the optical axis passes, to the inflectionpoint on the image-side surface, which is the closest to the opticalaxis; and TP5 is a central thickness of the fifth lens on the opticalaxis.
 15. The optical image capturing system of claim 8, wherein theoptical image capturing system further satisfies:0<IN12/f≦0.2; where IN12 is a distance on the optical axis between thefirst lens and the second lens.
 16. The optical image capturing systemof claim 8, wherein the optical image capturing system furthersatisfies:0.01≦f1/(f1+f3+f4)≦0.8.
 17. The optical image capturing system of claim8, wherein the optical image capturing system further satisfies:0<|f/f1|≦2;0<|f/f2|≦2;0<|f/f3|≦2;0<|f/f4|≦3; and0<|f/f5|≦3.
 18. An optical image capturing system, in order along anoptical axis from an object side to an image side, comprising: a firstlens having negative refractive power; a second lens having refractivepower; a third lens having refractive power; a fourth lens havingpositive refractive power; a fifth lens having negative refractivepower, wherein the fifth lens has an object-side surface, which facesthe object side, and an image-side surface, which faces the image side,and at least one of the object-side surface and the image-side surfaceof the fifth lens has at least an inflection point; and an image plane;wherein the optical image capturing system consists of the five lenseshaving refractive power; the object-side surface and the image-sidesurface of the fifth lens are aspheric surfaces; at least one of thethird lens and the fourth lens has at least an inflection point on atleast a surface thereof; wherein the optical image capturing systemsatisfies:1.2≦f/HEP≦2.8;0.4≦|tan(HAF)|≦3.0;0.5≦HOS/f≦3.0;|TDT|<60%; and|ODT|≦50%; where f1, f2, f3, f4, and f5 are focal lengths of the firstlens to the fifth lens, respectively; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HAF is a half of a view angle of the opticalimage capturing system; HOS is a distance in parallel with the opticalaxis between an object-side surface, which face the object side, of thefirst lens and the image plane; TDT is a TV distortion; and ODT is anoptical distortion.
 19. The optical image capturing system of claim 18,wherein the optical image capturing system further satisfies:0 mm<HIF≦5 mm; where HIF is a distance perpendicular to the optical axismeasured from the optical axis to any one of the inflection points onany one of the surfaces having at least an inflection point.
 20. Theoptical image capturing system of claim 19, wherein the optical imagecapturing system further satisfies:0.6InTL/HOS≦0.9; where InTL is a distance in parallel with the opticalaxis between an object-side surface, which faces the object side, of thefirst lens and the image-side surface of the fifth lens.
 21. The opticalimage capturing system of claim 18, wherein both the object-side surfaceand the image-side surface of the fifth lens each has at least aninflection point; and the optical image capturing system furthersatisfies:0.01≦f1/(f1+f3+f4)≦0.8; and0.01≦f5/(f2+f5)≦0.8.
 22. The optical image capturing system of claim 21,wherein the optical image capturing system further satisfies:0.45≦ΣTP/InTL≦0.95; where ΣTP is a sum of thicknesses of all the lenseshaving positive refractive power, and InTL is a distance in parallelwith the optical axis between the object-side surface of the first lensand the image-side surface of the fifth lens.
 23. The optical imagecapturing system of claim 21, further comprising an aperture and animage sensor on the image plane, wherein the optical image capturingsystem further satisfies:0.5≦InS/HOS≦1.1; where InS is a distance in parallel with the opticalaxis between the aperture and the image plane.